NO MAJOR CHANGES FOR THE DAWN UPDATE. PREVIOUS...HIGH PRESSURE
RIDGE WILL SLIDE EAST TODAY WITH SEASONAL TEMPERATURES. WEAK
SHORTWAVE WILL SLIDE SOUTHEAST TONIGHT IN NORTHWEST FLOW. NAM
SEEMS TO BE OUTLIER PRODUCING MORE IN THE WAY OF SHOWERS AND
STORMS. FOR NOW WILL GO WITH A COMBO OF THE ECMWF AND GFS...WITH
LIMITED MOISTURE AND INSTABILITY LOW CHANCE POPS MAINLY ALONG THE
I-80 CORRIDOR.

-- End Changed Discussion --

&&
.SHORT TERM /SATURDAY THROUGH MONDAY/...
SHORTWAVE IN NORTHWEST FLOW WILL HAVE LITTLE MOISTURE TO WORK
WITH SATURDAY WITH LOW POPS AGAIN ACROSS THE FAR NORTH. LATER
MONDAY STRONGER IMPULSE ARRIVES LATE DAY WITH DEEPER MOISTURE AND
CHANCE POPS. TEMPERATURES CLOSE TO AVERAGE THROUGH THE PERIOD.
&&
.LONG TERM /MONDAY NIGHT THROUGH THURSDAY/...
A BROAD EASTERN CONUS UPPER TROUGH IS PROGGED TO PERSIST THROUGH THE
PERIOD WITH SLIGHTLY COOLER THAN AVERAGE TEMPERATURES. MUCH OF THE
TIME SHOULD BE DRY...THOUGH A FEW SHORTWAVES ADVANCING THROUGH THE
TROUGH SHOULD BRING PERIODIC SHOWER CHANCES. FOLLOWED CLOSE TO WPC
ENSEMBLE BASED GUIDANCE TO SMOOTH OUT INDIVIDUAL MODEL
DIFFERENCES...THOUGH DID ADJUST GUIDANCE POPS DOWNWARD WITH
SHORTWAVE TIMING AND AVAILABLE MOISTURE IN QUESTION.
&&
.AVIATION /10Z FRIDAY THROUGH TUESDAY/...

-- Changed Discussion --

VFR CONDITIONS ARE EXPECTED THROUGH TONIGHT UNDER HIGH
PRESSURE...WITH CU RULE INDICATING SCTDIURNALCU. A WEAK
SHORTWAVE IS PROGGED TO MOVE ACROSS THE GREAT LAKES
TONIGHT...THOUGH THE BEST UPPER SUPPORT FOR ANY PRECIP SHOULD
STAY NORTH OF THE AREA.
OUTLOOK...SATURDAY THROUGH TUESDAY...
RESTRICTION POTENTIAL RETURNS EARLY NEXT WEEK WITH CROSSING
DISTURBANCES.